[Bug c++/91013] New: member function can have same name as constructor if declared using a typedef

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91013

            Bug ID: 91013
           Summary: member function can have same name as constructor if
                    declared using a typedef
           Product: gcc
           Version: 9.1.0
            Status: UNCONFIRMED
          Keywords: accepts-invalid
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: redi at gcc dot gnu.org
                CC: blelbach at cct dot lsu.edu
  Target Milestone: ---

G++ accepts this ill-formed program:

using F = void();
class A {
  F A;
};


Clang doesn't:

ctor.cc:3:5: error: constructor cannot have a return type
  F A;
  ~ ^
1 error generated.

EDG doesn't:

"ctor.cc", line 3: error: member function with the same name as its class must
          be a constructor
    F A;
      ^

1 error detected in the compilation of "ctor.cc".